1,2-Dimethoxyethane → 10-[3-(5-{[5-(4-Ethylpiperazin-1-yl)pyridine-2-yl]amino}-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-5-fluoro-2-(acetoxymethyl)phenyl]-4,4-dimethyl-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-9-one

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Reaction Steps

To a microwave tube equipped with a stirring bar, 189a (381.9 mg, 0.850 mmol), 3-(5-(4-ethylpiperazin-1-yl)pyridin-2-ylamino)-1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one (201a) (560 mg, 1.275 mmol), Pd(PPh3)4 (49.1 mg, 0.043 mmol), Na2CO3 aqueous solution (1.0 N, 2.81 mL, 2.81 mmol), 1,2-dimethoxy-ethane (4 mL) were added. The mixture was reacted in microwave at 130° C. for 10 min. methylene chloride (200 mL) was added and the resulting mixture was washed with water (30 mL×3), brine (30 mL×1), dried over MgSO4, filtered, and removed solvent in vacuo. Silica gel column chromatography (methanol:methylene chloride=5:95) gave 238a.

Provenance & Evidence